this.systemPropertyAccess = systemPropertyAccess
        }

        @Override
        String toString() {
            return "definitions: ${systemPropertyDefinitions.join(", ")}, access: $systemPropertyAccess"
        }

        SystemPropertiesCompositeBuildFixture createFixtureFor(AbstractConfigurationCacheIntegrationTest test, String propertyKey) {

import org.gradle.test.fixtures.file.TestFile

trait GroovyPluginImplementation {
    void groovyDsl(TestFile sourceFile, BuildInputRead read) {
        sourceFile << """
            ${read.requiredImports().collect { "import $it" }.join("\n")}

            println("apply = " + ${read.groovyExpression})
            tasks.register("thing") {
                doLast {
                    println("task = " + ${read.groovyExpression})
                }

        sourceFile << """
            import ${Action.name};
            import ${Project.name};
            import ${Plugin.name};
            import ${Task.name};
            ${read.requiredImports().collect { "import $it;" }.join("\n")}

            public class SneakyPlugin implements Plugin<Project> {
                public void apply(Project project) {
                    Object value = ${read.javaExpression};

            return accessor.getBinaryCompatibility() == BinaryCompatibility.ACCESSORS_KEPT;
        });
        if (!keptAccessors.isEmpty()) {
            String formattedLeft = CollectionUtils.join("\n", keptAccessors.keySet());
            throw new RuntimeException("The following accessors were upgraded, but didn't match any removed/changed method:\n\n" + formattedLeft);
        }

        return "Settings file 'settings.gradle'"
    }

    @Override
    void buildLogicApplication(BuildInputRead read) {
        settingsFile << """
            ${read.requiredImports().collect { "import $it" }.join("\n")}

            println("apply = " + ${read.groovyExpression})
            gradle.rootProject {
                tasks.register("thing") {
                    doLast {

        return "Build file 'build.gradle.kts'"
    }

    @Override
    void buildLogicApplication(BuildInputRead read) {
        buildKotlinFile << """
            ${read.requiredImports().collect { "import $it" }.join("\n")}

            plugins {
                println("apply = " + ${read.kotlinExpression})
            }
            tasks.register("thing") {
                doLast {

    void kotlinPlugin(TestFile sourceFile, BuildInputRead read) {
        sourceFile << """
            import ${Project.name}
            import ${Plugin.name}
            ${read.requiredImports().collect { "import $it" }.join("\n")}

            class SneakyPlugin: Plugin<Project> {
                override fun apply(project: Project) {
                    var value = ${read.kotlinExpression}
                    println("apply = " + value)

* Have a look at the [Samples](https://docs.gradle.org/current/samples/index.html)
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## Contributing

                abstract RegularFileProperty getOutputFile()

                @TaskAction
                void run() {
                    outputFile.get().asFile.text = inputFiles.files.collect { it.text }.join()
                }
            }

            def producer = tasks.register('producer', ConcatTask) {
                inputFiles.from(file("producer-input.txt"))

        type      | init                                               | iterate
        'HashSet' | "['first', 'second', 'third'] as HashSet"          | "underTest.join(', ')"
        'HashMap' | "['first': 1, 'second': 2, 'third': 3] as HashMap" | 'underTest.collect { k,v -> "$k=$v" }.join(", ")'
    }

    def "restores task fields whose value is instance of plugin specific version of Guava #type"() {
        buildFile << """